The graphic



" Bev i` known that LSALA'rHnin nL1s,of

y for `Building Graveland Concrete` Walls, lwhichI term A lSelf-Supporting Frame for Building Gravel and" Concrete 'Walls;

4 and I do` hereby declarethat the following isa full `and eXact description thereof,"refer "ence being had to the "accompanyingwdrawings and `to the letters of reference marked thereon. i f y' The nature *of myinvention consists in f brace `each side of the wall to bebuilt, and `so" contrivedthat, as the` wall progresses, the lowersection or `part may be `disconwithoutany injury to thejwall, and the sev* eral? parts `of which i are so connected; with, supported by each other, that they keep the wall plumb, and .y ofequal thickness` I makemy frame of six boards "or more three for eachside` or Isix if required pre- `.served atany lrequiredf; distance from each other (which is` :the intended thickness of `thewall to be builtlbywrods or crosspieces havinga headat `one end and fastened at 3`01the outsides of this` frame the" boards com-u posing which are `shownlby D, D,D, D, D, D, :Figure 1, I `place .clampsl 1a, 6,0, c, through whichtherods c, c, before spoken of pass,

@of the t boards d, d, or between them the slight"` spaces made1 between them in the latter case in noway elfecting the` wall.

" liSuppose the` wall `built upto the top of the upper boards, `I then unscrew the ,nut f, of the lowermost romand drive this rod out ofthe wall, and `thus release thelower board `of theframe.",Theclamp is then held by y but a single rod, whiclivbecomes a sortof pivot, upon which you@ can turn the clamp at pleasure.` The .lower ends of the clamps, `after the lower rods` of each are thus re- `of the two upperboards and `these ends, thus `upturned become then supports to which to attach the lower board disconnectedin the x `manner "above describedfand which is now made the upper board ofthe frame, and the i. STATES PATENTUFFCE skLATniELnLisjorNEW YORK, `N. Y.

` the city andfcountyand State of `New York, haveinventedanew and useful Contrivance` providing a sectional `frame"`orbox`,"to1em-` "nectedand be made theupper part,` andr theotherwith nuts and screws, or pins. I` Upon "and to which theyare fastened.` A view of "this `frame with itstwosets of clamps,`is` shown `byieitherofthe faces oflig. l. The rods e, e, maypass `throughthe upper edges moved, :are then turned uppermost,` whichy fcan be done Without" disturbing the position iaUfILnINehconcnETn WALLS.

siilciaai ofinetters Patent No. 12,676, atea April `1o,` 1855.

appliesto the laying of straight walls.

I n turning angles, the frame is constructed a little different, though in Vsuch case the `alteration necessary is only in the construc`` tion ofthe clamp. Theform vof the clamp for angles is shown by a and b, Figs. l and A2; The outside clamp a, projects over the boards on each side and the inside clamp b,

is triangular shaped, filling up the corner` of thewall, vand also broad eno-ugh to support th'e boards `of either side. As, these corner clamps from their-position, can not be turned end forend, as before described like the side clamps 0,0, I make in t-he center part of each a groove g, in length equal `to the distance between the two rods e, `e, `and large enough to" allow them free passage of these rods through such groove,

lwall `can `again bek laid. This description* is removed `in the same manner as` before .v

described, and these clamps moved or slid up until stopped by the upperrod, when the other rod is placed through them, at the top i ofthe groove g, and there fastened, and the frame is again ready formuse. By this contrivance ofside and corner clampsthe frame `may be continually elevated in portions, as`

the wall is built, andthe whole frame needs tto be but three boards deep, and it is `entirely self supporting. As only one board i is detached sata time and the clamps are `kept in `their proper position by the remaining boards, whichare also kept in their proper perpendicular position and Aat the required width bythe wall itself, itv follows as a matter of course` that the top board, added from time to time will always be in the same perpendicular `line with the others, and the wallbe kept, at all times of a given height. y

The clamps a., b, c, will perhaps be found the cheapest and most reliable, in the erec` tion of a `house, if made of iron, and if they are alsoprovided with strong iron rods e, e,

having either thumb screwsA or pins to fasten them. But these parts may all be of wood `if desired,"or more convenient, and they are so simple of constructionthat almost any onecan make them. And indeed one great `recommendation of my whole contrivance` is its great simplicity, and cheapness which enables all toavail themselves of it, land to use it equally Well.

In erecting a house of gravel Wall, I stantially as before described, so that they bounded the entire circuit of the Wall with can be moved or turned up, as necessity remy seafold and then laid up one part as quires, and the combination of these clamps fast as the other so that at about the same With the rods and boards to form a self 5 time the lower boards of the entire circuit supporting frame for the use and purposes 15 were released and the clamps elevated, and above described.

the boards relad at top. SALATHIEL ELLIS.

`What I claim as my invention and desire rW'itnesses: to secure by Letters Patent is HALL COLBY, 10 The construction of the clamps, sub- S. D. LAW. 

